Home > Term: pillaring nazaj
pillaring nazaj
Postopek pridobivanja premoga stebrov, o umikajoče sistem, v steber metoda dela.
- Μέρος του λόγου: noun
- Κλάδος/Τομέας: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
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Δημιουργός
- S.Ostanek
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(V.I.P) 57562 points - 100% positive feedback
(Kranj, Slovenia)
